UMI Shoeboxer algorithm

[Cyubahir]

According to the Umi documentation and also by referring to this paper https://www.sciencedirect.com/science/article/abs/pii/S0378778817300932, It clearly describes that the Umi Shoeboexer algorithm uses a clustering method to generate shoebox building energy models based on solar radiation received on building facades but by using a weather file without solar radiation, it also provides simulation results. I would like to know how the algorithm operates in this case where solar radiations are not taken into consideration. Thanks